Clients should see your brand, not ours.
CPANEL AND WHM BRANDING
WHM > Account Functions > Modify cPanel/WHM News, and the customisation options available under your reseller privileges, allow you to set a logo, a documentation URL and support contact details so clients see your name.
PRIVATE NAMESERVERS
The single most visible change. Clients set ns1.yourbrand.com rather than ours. See the private nameservers article.
YOUR OWN SUPPORT CHANNEL
Direct clients to your own email address or ticket system. If they contact us directly we will refer them back to you, because they are your customer and we have no relationship with them.
YOUR OWN BILLING
Invoice clients yourself, at your own prices, on your own cycle.
A WEBSITE FOR THE HOSTING BUSINESS
If you are selling hosting rather than bundling it with design work, you need a page describing your plans, prices and terms, and a way to order.
WHAT YOU CANNOT REBRAND
The underlying server hostname and reverse DNS remain ours. A technically curious client can determine where the hosting actually sits. This is normal across the industry and rarely matters commercially.